CN215895114U

CN215895114U - Polarized light micro-photographic device

Info

Publication number: CN215895114U
Application number: CN202122504225.9U
Authority: CN
Inventors: 崔利
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-02-22
Anticipated expiration: 2031-10-18

Abstract

The utility model provides a polarized light photomicrography device, which realizes microscopic magnification imaging by using a camera of a mobile terminal and comprises a microscope lens, a light source box and a focusing mechanism; the microscope lens is installed on a camera of the mobile terminal, and is integrated with an analyzer which is used for polarized light imaging; the light source box is arranged below the micro lens and illuminates the micro lens through reflected light, and a polarizer is further arranged on the light source box and used for converting light reflected by the light source box into polarized light; the focusing mechanism is used for placing the mobile terminal and adjusting the distance between a camera of the mobile terminal and a shot sample to perform focusing. The polarized light microscopic photography device is convenient to carry, simple in use mode, high in magnification and clear in imaging, and has polarized light observation and photography functions.

Description

Polarized light micro-photographic device

Technical Field

The utility model relates to the field of microscopic photographing devices, in particular to a polarized light microscopic photographing device.

Background

A microscope is a widely used instrument for observing minute objects. A conventional microscope is composed of a base, a holder, a barrel, and an objective lens and an eyepiece lens mounted at both ends of the barrel. An objective lens toward an object is a lens having an extremely short focal length for magnifying an object into a real image, and an eyepiece lens in contact with the eyes of a user is a magnifying lens for observing the magnified real image. The magnification of the microscope can be obtained by multiplying the magnification of the objective lens and the magnification of the eyepiece. Polarized light is a contrast enhancement technique that improves the quality of images obtained from viewing birefringent materials (e.g., crystals, minerals, liquid crystals, plastics, etc.). The polarization microscope is designed for observing and taking a picture of a sample mainly due to its optical anisotropic property.

Mobile terminals such as smart phones and tablet computers, which have been widely used in recent years, have cameras for photographing objects widely built in them. And the resolution of the built-in camera of the smartphone is comparable to or even higher than the level of a general dedicated digital camera. Accordingly, various devices for taking photos microscopically by using a built-in camera of a smart phone have appeared, and for example, chinese patent ZL201320295925.4 discloses a device for fixing a mobile terminal such as a smart phone on an eyepiece of a microscope to realize digital microscopic photography. The shortest shooting distance of a camera built in a smart phone is generally ten and several centimeters, and if a subject is located within the shortest shooting distance, shooting may not be performed or clear shooting may not be performed due to out-of-focus. In order to use the camera of the smart phone as a microscope or a magnifying glass, an external macro lens or a micro microscope is additionally mounted on the camera of the smart phone. To achieve the above object, chinese patent ZL201220163127.1 discloses a smartphone-based handheld digital microscope, in which a photomicrograph device is described that is illuminated by a flashlight of the phone itself through a light pipe.

However, the prior art suffers from various deficiencies, such as a bench microscope, which is bulky and expensive; the macro lens of the mobile phone has the defects of low magnification and unclear imaging; the portable microscope is mounted on a mobile phone, which is inconvenient to carry and use due to a long protrusion in front of a camera of the mobile phone.

Therefore, in view of the shortcomings of the prior art, there is a need for a microscope device that is portable, compact, easy to use, and has high magnification and clear imaging.

SUMMERY OF THE UTILITY MODEL

The utility model provides a polarized light microscopic photography device which is convenient to carry, simple in use mode, high in magnification and clear in imaging, and has polarized light observation and photography functions.

In order to achieve the above objects and other related objects, the present invention provides a polarized light photomicrography device, which uses a camera of a mobile terminal to achieve a microscopic magnification imaging, and comprises a microlens, a light source box and a focusing mechanism;

the microscope lens is installed on a camera of the mobile terminal, and is integrated with an analyzer which is used for polarized light imaging;

the light source box is arranged below the micro lens and illuminates the micro lens through reflected light, and a polarizer is further arranged on the light source box and used for converting light reflected by the light source box into polarized light;

the focusing mechanism is used for placing the mobile terminal and adjusting the distance between a camera of the mobile terminal and a shot sample to perform focusing.

Further, the mobile terminal comprises a head, a middle part and a tail, the head is provided with a camera, the focusing mechanism comprises a lever mechanism and a movable wedge-shaped structure, the lever mechanism supports the middle part, the movable wedge-shaped structure supports the tail, the height of the tail can be adjusted by the movable wedge-shaped structure, and the height of the head is changed by transmitting the height of the tail to the head through the lever mechanism.

Further, the light source box reflects flash light rays of the mobile terminal and/or ambient natural illumination rays to illuminate the micro lens.

Further, the light source box is made of transparent materials, a reflecting surface used for reflecting light is arranged on the lower surface of the light source box, the polarizer is arranged in an area of the upper surface, and the polarizer is used for converting the light passing through the polarizer into polarized light.

Furthermore, a camera of the mobile terminal is in communication connection with a display screen, and the micro-amplified image is transmitted to the display screen through the communication connection.

Further, the mobile terminal is a smart phone or a tablet computer.

Further, the light source box is also used for accommodating the micro lens and the focusing mechanism.

Furthermore, the focusing mechanism is formed by processing materials with the thickness of 1-3 mm into a plurality of flat sheet-shaped components and splicing the flat sheet-shaped components.

In summary, the present invention provides a polarized light microscopic imaging apparatus, which can operate in a polarized light observation mode and can also operate in a normal light mode. Under the help of the focusing device, the use mode is simple and reliable, the high magnification and clear imaging are realized, the carrying is convenient, and the device can be suitable for various scenes needing microscopic observation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the utility model, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic diagram of an overall structure of a polarization photomicrography device according to an embodiment of the utility model;

fig. 2 is a schematic side view of the general structure of a polarization photomicrograph device according to an embodiment of the utility model;

FIG. 3 is a schematic diagram of a light source box of a polarization photomicrography device according to an embodiment of the utility model;

FIG. 4 is a schematic view of a partial structure of a polarization photomicrography device according to an embodiment of the present invention;

wherein the reference numerals are as follows:

1-a mobile terminal; 11-camera of mobile terminal; 12-flash of the mobile terminal; 2-a microscope lens; 21-an analyzer; 3-focusing mechanism, 31-lever structure, 32-movable wedge structure, 4-light source box, 41-polarizer and 5-sample.

Detailed Description

The polarization photomicrography device of the present invention will be described in further detail with reference to FIGS. 1-4 and the detailed description. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.

As shown in fig. 1, an embodiment of the present invention provides a polarization micro-photography device, which uses a camera 11 on a mobile terminal 1 to realize micro-magnification imaging, wherein the mobile terminal 1 has a built-in camera device to realize a photography function, the camera device generally comprises at least one camera 11, the camera 11 may be disposed on the front or back of the mobile terminal 1, and a plurality of cameras 11 may be disposed on the front or back of the mobile terminal. Polarisation photomicrography device includes microscope head 2, focusing mechanism 3 and light source box 4, microscope head 2 is fixed to be set up on mobile terminal 1's the camera 11, the laminating of the surface of the mobile terminal 1 at microscope head 2 and camera 11 place, just the camera lens optical axis of microscope head 2 aligns with the camera lens optical axis of mobile terminal 1's camera 11. Thus, the micro-lens 2 and the mobile terminal are organically combined together to form a harmonious whole. Referring to fig. 4, the microlens 2 is integrated with an analyzer 21, and the analyzer 21 is used for polarized light imaging. The focusing mechanism 3 is used for placing the mobile terminal 1 and adjusting the distance between the camera 11 of the mobile terminal 1 and the shot sample 5 for focusing. Light source box 4 sets up microscope head 2 below to do through reflection light microscope head 2 is lighted, as shown in fig. 3, still be provided with polarizer 41 on light source box 4, polarizer 41 is used for with the light that light source box 4 reflects converts polarized light into.

In this embodiment, the mobile terminal 1 is supported on the focusing mechanism 3, and the micro lens 2 is directly opposite to the light source box 4 which also serves as a sample stage. The focusing mechanism 3 operates as shown in fig. 2 and 4, and the distance between the microscope lens 2 and the sample 5 is adjusted by a lever structure 31 to realize precise focusing. The two parts supporting the middle part of the mobile terminal 1 form the fulcrum of the lever, and the part supporting the tail part of the mobile terminal 1 is a wedge-shaped structure, namely a movable wedge-shaped structure 32, and the movable wedge-shaped structure 32 can change the height of the tail part of the mobile terminal 1. The change of the tail height of the mobile terminal 1 is transmitted to the other end provided with the microscope lens 2 through the lever action, so that the distance from the microscope lens 2 to the sample 5 is adjusted, and the focus is accurately controlled. Since a large distance change in the horizontal direction is converted into a small distance change in the vertical direction by moving a wedge-shaped member, the adjustment of the focus becomes fine and easy.

In this embodiment, the light source box 4 is made of transparent material, and has a reflective film on its bottom to reflect light and a polarizer 41 on its upper surface to convert light passing through it into polarized light, as shown in fig. 3. Referring to fig. 4, when a polarization microscope is performed, the sample 5 is placed on the light source box 4 in the area of the polarizer 41, and the light irradiated on the sample 5 is polarized light. If normal light observation is to be performed, the sample is placed in a region other than the polarizer 41 so that the light irradiated to the sample 5 does not pass through the polarizer 41.

In this embodiment, referring to fig. 4, light emitted from the flash 12 of the mobile terminal 1 is transmitted through the upper surface of the light source box 4 and reflected on the lower surface thereof, the polarized light formed after the reflected light passes through the polarizer 41 is irradiated on the sample 5, the sample 5 passes through the microscope lens 2 and the analyzer 21 integrated on the microscope lens 2, an enlarged image is formed on the camera 11 of the mobile terminal 1, and finally a further enlarged image can be displayed on a display screen. In actual use, the camera software of the mobile terminal 1 digitally magnifies the image, that is, digitally processes the image through software or cuts the image to display a magnified image of a local part of the original image; on the other hand, in addition to the illumination provided by the flash 12 on the mobile terminal 1, the illumination may also be provided by an external light source around, such as a relatively bright natural light or an artificial light source considered to be provided to participate in the micro-magnification imaging process through a similar light path as the flash. As shown in fig. 4, which is the case of polarization photomicrography, the sample 5 can be placed in an area outside the polarizer 41, as previously described, if ordinary light is desired as a mode of photomicrographic observation. This corresponds to moving the polarizer 41 out of the optical path without participating in the imaging, and thus operates in the normal light photomicrography and observation mode.

In this embodiment, the polarization microphotography device of the present invention is small and portable, the focusing mechanism 3 may be formed by processing a material with a thickness of 1-3 mm into a plurality of flat sheet-like components, and then splicing and assembling the flat sheet-like components, so that a very small storage space may be occupied before assembly or after use after disassembly and disassembly, and meanwhile, the focusing mechanism 3 is designed to be assembled by a slot, so as to facilitate assembly and disassembly after use.

In this embodiment, the light source box 4 also serves as a storage box, the focusing mechanism 3 can be conveniently stored in the storage box in a disassembled state, and the micro lens 2 is also ultra-thin and compact in design, can be stored in the storage box together with the focusing mechanism 3, and is very convenient to carry and use.

In this embodiment, the mobile terminal 1 is a smart phone or a tablet computer, but it should be understood by those skilled in the art that the mobile terminal 1 is not limited to these two types.

The polarized light microscopic photography device provided by the utility model has the advantages that the polarized light microscopic photography device can work in a polarized light observation mode and can also work in a common light mode; moreover, with the help of the focusing mechanism, the use mode is simple and reliable, the magnification is high, and the image is clear; finally, the polarized light microscopic photography device is convenient to carry and can be suitable for various scenes needing microscopic observation.

While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the utility model. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the utility model should be determined from the following claims.

Claims

1. A polarized light photomicrography device is characterized in that the polarized light photomicrography device realizes the photomicrography by using a camera of a mobile terminal, and comprises a microscope lens, a light source box and a focusing mechanism;

2. The polarized photomicrography device of claim 1, wherein the mobile terminal includes a head portion, a middle portion, and a tail portion, the head portion having a camera disposed thereon, the focus mechanism including a lever mechanism supporting the middle portion and a traveling wedge structure supporting the tail portion, the traveling wedge structure being capable of adjusting the height of the tail portion and being transferred to the head portion via the lever mechanism to change the head height.

3. A polarized photomicrography device according to claim 1, wherein the light source box reflects flash light and/or ambient natural illumination of the mobile terminal to illuminate the microlens.

4. A polarized photomicrography device according to claim 1, wherein the light source housing is formed of a transparent material, the lower surface of the light source housing is provided with a light-reflecting surface for reflecting light, and an area of the upper surface is provided with the polarizer for converting light passing through the polarizer into polarized light.

5. A polarized photomicrographic device as recited in claim 1, wherein the camera of the mobile terminal is communicatively coupled to a display screen and the communication link is used to transmit the magnified images to the display screen.

6. The polarized photomicrography device of any of claims 1-5, wherein the mobile terminal is a smartphone or a tablet computer.

7. A polarization photomicrography device according to any of claims 1-5, wherein the light source cartridge is further configured to receive the microlens and the focusing mechanism.

8. A polarization photomicrography device according to any of claims 1-5, wherein the focusing mechanism is formed by splicing a plurality of flat sheet-like members made of a material having a thickness of 1-3 mm.